How fast?? Nordic heat
#11
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Hey Steve I am interested in a drive spacer. How much does a good one run on price? How do you determine the x dimension on the heats? I am all stock 496 ho, however I am running a 4 blade powertech 25 pitch OFX model prop. I would like more speed low fuel and me alone I can only get it up to 63 mph. I do have some extra weight in there from alout of audio stuff like 175 pounds worth. Had it in there when I made the purchase though. Ive heard about the heats slipping out of the hole a bit as does mine if I get into the trottle to much. Is that normal?
X dimension is the vertical distance from your input shaft to the bottom of the hull, or pad on our boats. To measure it, measure from the center of your trim sender housing on the side of the drive to the bottom of the pad. You'll need to use a straight edge on the pad, sticking out behind the transom. It is not measured along the transom angle. You'll probably measure 18" to 19"s.
Last edited by Steve Zuckerman; 04-23-2012 at 04:10 PM.
#12
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For a 500EFI boat, a 25" or 26" pitch should be close. They have an exchange program to get you the size you need.
I think Brett at BBlades also carries these now.
You may be able to find one in the OSO prop section too.
I would call hydromotive and Brett. They should have a good database for our boats (as to prop model and pitch).
www.hydromotive.com
Last edited by Steve Zuckerman; 04-23-2012 at 04:17 PM.
#13
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Join Date: May 2011
Location: IL
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Thanks Steve for the reply, the prop I have now already has extra cup in it. I just went and measured my XD, It measures 19 inches center of trim pod to bottem pad. Is that a good running number for a heat? What will a 1 inch drive spacer do for my boat?? Go faster, not slip as much out of the hole, etc? If I get a drive spacer will I need to change my prop? Sorry for all the questions! Thanks Garret
#14
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Thanks Steve for the reply, the prop I have now already has extra cup in it. I just went and measured my XD, It measures 19 inches center of trim pod to bottem pad. Is that a good running number for a heat? What will a 1 inch drive spacer do for my boat?? Go faster, not slip as much out of the hole, etc? If I get a drive spacer will I need to change my prop? Sorry for all the questions! Thanks Garret
Regards,
Steve
Last edited by Steve Zuckerman; 04-23-2012 at 07:31 PM.
#16
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Most of us like and use the Hydromotive P5-X.
For a 500EFI boat, a 25" or 26" pitch should be close. They have an exchange program to get you the size you need.
I think Brett at BBlades also carries these now.
You may be able to find one in the OSO prop section too.
I would call hydromotive and Brett. They should have a good database for our boats (as to prop model and pitch).
www.hydromotive.com
For a 500EFI boat, a 25" or 26" pitch should be close. They have an exchange program to get you the size you need.
I think Brett at BBlades also carries these now.
You may be able to find one in the OSO prop section too.
I would call hydromotive and Brett. They should have a good database for our boats (as to prop model and pitch).
www.hydromotive.com
Kevin
#17
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Thanks Steve. I hope to have the prop back that I sent out earlier this year and try it, I think the next step is going to be the spacer. The measurement I came up with is 19 1/8. I will give Brett a call and see what we can do. I hope to get it close to 75mph, gotta try to catch my brother's Warlock!
Kevin
Kevin
Last edited by Steve Zuckerman; 04-23-2012 at 09:57 PM.
#18
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I would call Imco and Nordic and see if either of them have done this. I haven't done this exact modification to your engine/hull combination, and it's not an exact science. If you plan to keep the 4 blade, and I would with the Mag, 1.5" may be better.
The issue is, would the extra propeller lockup of the 1.5" spacer offset the additional hydrodynamic drag created by the lower XD? Is your boat an MCOB or closed deck? The MCOBs seem to need a little more lift, so that may help you decide.
Steve
Last edited by Steve Zuckerman; 04-23-2012 at 09:47 PM.
#19
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#20
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Fountain did run a few left hand set ups in the 90s. I have 2 friends with good running 29's, and they are both right hand drive boats. One has a 525/Whipple, the other is lightly modified 575.
I think Chris did run a left hand prop as a test. Can't remember the results. With a right hand driver station on our boats, it is going to ride low on the right with one person and a left hand propeller.
I think Chris did run a left hand prop as a test. Can't remember the results. With a right hand driver station on our boats, it is going to ride low on the right with one person and a left hand propeller.